java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label57_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-25 00:21:01,431 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-25 00:21:01,435 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-25 00:21:01,453 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-25 00:21:01,453 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-25 00:21:01,454 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-25 00:21:01,456 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-25 00:21:01,458 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-25 00:21:01,462 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-25 00:21:01,463 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-25 00:21:01,465 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-25 00:21:01,465 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-25 00:21:01,466 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-25 00:21:01,467 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-25 00:21:01,477 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-25 00:21:01,478 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-25 00:21:01,479 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-25 00:21:01,484 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-25 00:21:01,486 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-25 00:21:01,491 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-25 00:21:01,494 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-25 00:21:01,495 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-25 00:21:01,498 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-25 00:21:01,505 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-25 00:21:01,521 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-25 00:21:01,521 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-25 00:21:01,522 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-25 00:21:01,522 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-25 00:21:01,522 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-25 00:21:01,522 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-25 00:21:01,523 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-25 00:21:01,523 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-25 00:21:01,523 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-25 00:21:01,523 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-25 00:21:01,523 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-25 00:21:01,524 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-25 00:21:01,524 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-25 00:21:01,524 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-25 00:21:01,525 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-25 00:21:01,525 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-25 00:21:01,525 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-25 00:21:01,525 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-25 00:21:01,525 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-25 00:21:01,526 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-25 00:21:01,526 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-25 00:21:01,526 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-25 00:21:01,526 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-25 00:21:01,526 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-25 00:21:01,527 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-25 00:21:01,527 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-25 00:21:01,527 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 00:21:01,527 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-25 00:21:01,527 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-25 00:21:01,528 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-25 00:21:01,528 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-25 00:21:01,528 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-25 00:21:01,528 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-25 00:21:01,528 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-25 00:21:01,528 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-25 00:21:01,529 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-25 00:21:01,572 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-25 00:21:01,587 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-25 00:21:01,591 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-25 00:21:01,593 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-25 00:21:01,593 INFO L276 PluginConnector]: CDTParser initialized [2018-10-25 00:21:01,594 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label57_true-unreach-call.c [2018-10-25 00:21:01,661 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9cc3e65b7/7d77f314750b4c8c9ec607176c5138e7/FLAG6b30eee4e [2018-10-25 00:21:02,341 INFO L298 CDTParser]: Found 1 translation units. [2018-10-25 00:21:02,342 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label57_true-unreach-call.c [2018-10-25 00:21:02,363 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9cc3e65b7/7d77f314750b4c8c9ec607176c5138e7/FLAG6b30eee4e [2018-10-25 00:21:02,384 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9cc3e65b7/7d77f314750b4c8c9ec607176c5138e7 [2018-10-25 00:21:02,396 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-25 00:21:02,398 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-25 00:21:02,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-25 00:21:02,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-25 00:21:02,403 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-25 00:21:02,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 12:21:02" (1/1) ... [2018-10-25 00:21:02,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65c12104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:21:02, skipping insertion in model container [2018-10-25 00:21:02,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 12:21:02" (1/1) ... [2018-10-25 00:21:02,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-25 00:21:02,514 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-25 00:21:03,308 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 00:21:03,314 INFO L189 MainTranslator]: Completed pre-run [2018-10-25 00:21:03,657 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 00:21:03,680 INFO L193 MainTranslator]: Completed translation [2018-10-25 00:21:03,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:21:03 WrapperNode [2018-10-25 00:21:03,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-25 00:21:03,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-25 00:21:03,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-25 00:21:03,682 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-25 00:21:03,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:21:03" (1/1) ... [2018-10-25 00:21:03,742 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:21:03" (1/1) ... [2018-10-25 00:21:03,996 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-25 00:21:03,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-25 00:21:03,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-25 00:21:03,997 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-25 00:21:04,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:21:03" (1/1) ... [2018-10-25 00:21:04,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:21:03" (1/1) ... [2018-10-25 00:21:04,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:21:03" (1/1) ... [2018-10-25 00:21:04,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:21:03" (1/1) ... [2018-10-25 00:21:04,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:21:03" (1/1) ... [2018-10-25 00:21:04,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:21:03" (1/1) ... [2018-10-25 00:21:04,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:21:03" (1/1) ... [2018-10-25 00:21:04,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-25 00:21:04,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-25 00:21:04,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-25 00:21:04,157 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-25 00:21:04,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:21:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 00:21:04,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-25 00:21:04,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-25 00:21:04,229 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-25 00:21:04,229 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-25 00:21:04,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-25 00:21:04,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-25 00:21:04,230 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-25 00:21:04,230 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-25 00:21:09,300 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-25 00:21:09,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 12:21:09 BoogieIcfgContainer [2018-10-25 00:21:09,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-25 00:21:09,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-25 00:21:09,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-25 00:21:09,309 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-25 00:21:09,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 12:21:02" (1/3) ... [2018-10-25 00:21:09,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@235438eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 12:21:09, skipping insertion in model container [2018-10-25 00:21:09,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:21:03" (2/3) ... [2018-10-25 00:21:09,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@235438eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 12:21:09, skipping insertion in model container [2018-10-25 00:21:09,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 12:21:09" (3/3) ... [2018-10-25 00:21:09,314 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label57_true-unreach-call.c [2018-10-25 00:21:09,325 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-25 00:21:09,334 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-25 00:21:09,356 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-25 00:21:09,410 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-25 00:21:09,410 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-25 00:21:09,411 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-25 00:21:09,411 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-25 00:21:09,411 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-25 00:21:09,411 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-25 00:21:09,411 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-25 00:21:09,412 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-25 00:21:09,462 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-10-25 00:21:09,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-10-25 00:21:09,491 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:21:09,493 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:21:09,495 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:21:09,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:21:09,504 INFO L82 PathProgramCache]: Analyzing trace with hash 790095017, now seen corresponding path program 1 times [2018-10-25 00:21:09,507 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:21:09,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:21:09,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:21:09,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:21:09,569 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:21:09,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:21:10,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:21:10,566 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 00:21:10,566 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-25 00:21:10,567 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:21:10,574 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 00:21:10,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 00:21:10,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 00:21:10,594 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2018-10-25 00:21:12,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:21:12,819 INFO L93 Difference]: Finished difference Result 844 states and 1489 transitions. [2018-10-25 00:21:12,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 00:21:12,821 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2018-10-25 00:21:12,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:21:12,844 INFO L225 Difference]: With dead ends: 844 [2018-10-25 00:21:12,844 INFO L226 Difference]: Without dead ends: 530 [2018-10-25 00:21:12,854 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 00:21:12,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2018-10-25 00:21:12,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 525. [2018-10-25 00:21:12,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 525 states. [2018-10-25 00:21:12,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 865 transitions. [2018-10-25 00:21:12,967 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 865 transitions. Word has length 168 [2018-10-25 00:21:12,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:21:12,968 INFO L481 AbstractCegarLoop]: Abstraction has 525 states and 865 transitions. [2018-10-25 00:21:12,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 00:21:12,968 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 865 transitions. [2018-10-25 00:21:12,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-10-25 00:21:12,978 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:21:12,981 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:21:12,983 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:21:12,986 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:21:12,987 INFO L82 PathProgramCache]: Analyzing trace with hash -553690579, now seen corresponding path program 1 times [2018-10-25 00:21:12,987 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:21:12,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:21:12,988 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:21:12,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:21:12,989 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:21:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:21:13,505 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:21:13,505 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 00:21:13,505 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-25 00:21:13,505 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:21:13,512 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 00:21:13,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 00:21:13,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 00:21:13,513 INFO L87 Difference]: Start difference. First operand 525 states and 865 transitions. Second operand 3 states. [2018-10-25 00:21:15,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:21:15,531 INFO L93 Difference]: Finished difference Result 1473 states and 2496 transitions. [2018-10-25 00:21:15,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 00:21:15,532 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2018-10-25 00:21:15,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:21:15,543 INFO L225 Difference]: With dead ends: 1473 [2018-10-25 00:21:15,543 INFO L226 Difference]: Without dead ends: 954 [2018-10-25 00:21:15,546 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 00:21:15,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2018-10-25 00:21:15,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 952. [2018-10-25 00:21:15,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 952 states. [2018-10-25 00:21:15,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1496 transitions. [2018-10-25 00:21:15,602 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1496 transitions. Word has length 181 [2018-10-25 00:21:15,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:21:15,603 INFO L481 AbstractCegarLoop]: Abstraction has 952 states and 1496 transitions. [2018-10-25 00:21:15,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 00:21:15,603 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1496 transitions. [2018-10-25 00:21:15,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-10-25 00:21:15,610 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:21:15,611 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:21:15,611 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:21:15,611 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:21:15,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1994788873, now seen corresponding path program 1 times [2018-10-25 00:21:15,612 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:21:15,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:21:15,613 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:21:15,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:21:15,613 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:21:15,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:21:15,876 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:21:15,876 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 00:21:15,877 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-25 00:21:15,877 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:21:15,878 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 00:21:15,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 00:21:15,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 00:21:15,878 INFO L87 Difference]: Start difference. First operand 952 states and 1496 transitions. Second operand 3 states. [2018-10-25 00:21:18,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:21:18,376 INFO L93 Difference]: Finished difference Result 2749 states and 4435 transitions. [2018-10-25 00:21:18,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 00:21:18,377 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2018-10-25 00:21:18,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:21:18,393 INFO L225 Difference]: With dead ends: 2749 [2018-10-25 00:21:18,393 INFO L226 Difference]: Without dead ends: 1803 [2018-10-25 00:21:18,402 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 00:21:18,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1803 states. [2018-10-25 00:21:18,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1803 to 1786. [2018-10-25 00:21:18,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1786 states. [2018-10-25 00:21:18,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1786 states to 1786 states and 2786 transitions. [2018-10-25 00:21:18,479 INFO L78 Accepts]: Start accepts. Automaton has 1786 states and 2786 transitions. Word has length 183 [2018-10-25 00:21:18,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:21:18,480 INFO L481 AbstractCegarLoop]: Abstraction has 1786 states and 2786 transitions. [2018-10-25 00:21:18,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 00:21:18,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1786 states and 2786 transitions. [2018-10-25 00:21:18,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-10-25 00:21:18,488 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:21:18,488 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:21:18,489 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:21:18,489 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:21:18,489 INFO L82 PathProgramCache]: Analyzing trace with hash 2119210880, now seen corresponding path program 1 times [2018-10-25 00:21:18,489 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:21:18,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:21:18,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:21:18,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:21:18,491 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:21:18,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:21:18,734 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-10-25 00:21:18,949 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:21:18,950 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 00:21:18,950 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 00:21:18,950 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:21:18,951 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 00:21:18,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 00:21:18,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 00:21:18,952 INFO L87 Difference]: Start difference. First operand 1786 states and 2786 transitions. Second operand 6 states. [2018-10-25 00:21:22,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:21:22,587 INFO L93 Difference]: Finished difference Result 5451 states and 9148 transitions. [2018-10-25 00:21:22,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-25 00:21:22,588 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 186 [2018-10-25 00:21:22,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:21:22,625 INFO L225 Difference]: With dead ends: 5451 [2018-10-25 00:21:22,625 INFO L226 Difference]: Without dead ends: 3671 [2018-10-25 00:21:22,635 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-25 00:21:22,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3671 states. [2018-10-25 00:21:22,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3671 to 3579. [2018-10-25 00:21:22,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3579 states. [2018-10-25 00:21:22,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3579 states to 3579 states and 5696 transitions. [2018-10-25 00:21:22,810 INFO L78 Accepts]: Start accepts. Automaton has 3579 states and 5696 transitions. Word has length 186 [2018-10-25 00:21:22,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:21:22,811 INFO L481 AbstractCegarLoop]: Abstraction has 3579 states and 5696 transitions. [2018-10-25 00:21:22,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 00:21:22,811 INFO L276 IsEmpty]: Start isEmpty. Operand 3579 states and 5696 transitions. [2018-10-25 00:21:22,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-10-25 00:21:22,827 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:21:22,827 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:21:22,827 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:21:22,828 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:21:22,828 INFO L82 PathProgramCache]: Analyzing trace with hash 2107273996, now seen corresponding path program 1 times [2018-10-25 00:21:22,828 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:21:22,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:21:22,829 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:21:22,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:21:22,829 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:21:22,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:21:23,143 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 31 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:21:23,144 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:21:23,144 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:21:23,145 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 196 with the following transitions: [2018-10-25 00:21:23,147 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [29], [33], [36], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [805], [807], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:21:23,208 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:21:23,208 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:21:25,475 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 00:21:25,476 INFO L272 AbstractInterpreter]: Visited 172 different actions 338 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-10-25 00:21:25,517 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:21:25,518 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 00:21:27,539 INFO L232 lantSequenceWeakener]: Weakened 192 states. On average, predicates are now at 71.58% of their original sizes. [2018-10-25 00:21:27,539 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 00:21:28,280 INFO L413 sIntCurrentIteration]: We have 194 unified AI predicates [2018-10-25 00:21:28,280 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 00:21:28,281 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 00:21:28,281 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [5] total 23 [2018-10-25 00:21:28,282 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:21:28,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-25 00:21:28,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-25 00:21:28,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2018-10-25 00:21:28,283 INFO L87 Difference]: Start difference. First operand 3579 states and 5696 transitions. Second operand 20 states. [2018-10-25 00:22:24,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:22:24,429 INFO L93 Difference]: Finished difference Result 7574 states and 12066 transitions. [2018-10-25 00:22:24,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-25 00:22:24,430 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 195 [2018-10-25 00:22:24,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:22:24,450 INFO L225 Difference]: With dead ends: 7574 [2018-10-25 00:22:24,451 INFO L226 Difference]: Without dead ends: 4001 [2018-10-25 00:22:24,462 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 202 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=169, Invalid=587, Unknown=0, NotChecked=0, Total=756 [2018-10-25 00:22:24,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4001 states. [2018-10-25 00:22:24,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4001 to 3998. [2018-10-25 00:22:24,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3998 states. [2018-10-25 00:22:24,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3998 states to 3998 states and 6141 transitions. [2018-10-25 00:22:24,583 INFO L78 Accepts]: Start accepts. Automaton has 3998 states and 6141 transitions. Word has length 195 [2018-10-25 00:22:24,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:22:24,583 INFO L481 AbstractCegarLoop]: Abstraction has 3998 states and 6141 transitions. [2018-10-25 00:22:24,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-10-25 00:22:24,584 INFO L276 IsEmpty]: Start isEmpty. Operand 3998 states and 6141 transitions. [2018-10-25 00:22:24,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-10-25 00:22:24,598 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:22:24,598 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:22:24,598 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:22:24,599 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:22:24,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1111613903, now seen corresponding path program 1 times [2018-10-25 00:22:24,599 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:22:24,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:22:24,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:22:24,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:22:24,601 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:22:24,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:22:24,781 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:22:24,781 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:22:24,781 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:22:24,781 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 209 with the following transitions: [2018-10-25 00:22:24,782 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [48], [49], [53], [57], [61], [64], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [805], [807], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:22:24,792 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:22:24,793 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:22:26,811 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 00:22:26,812 INFO L272 AbstractInterpreter]: Visited 172 different actions 337 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-10-25 00:22:26,819 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:22:26,819 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 00:22:29,651 INFO L232 lantSequenceWeakener]: Weakened 13 states. On average, predicates are now at 87.75% of their original sizes. [2018-10-25 00:22:29,652 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 00:22:36,405 INFO L413 sIntCurrentIteration]: We have 207 unified AI predicates [2018-10-25 00:22:36,406 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 00:22:36,406 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 00:22:36,406 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2018-10-25 00:22:36,406 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:22:36,407 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-25 00:22:36,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-25 00:22:36,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-10-25 00:22:36,408 INFO L87 Difference]: Start difference. First operand 3998 states and 6141 transitions. Second operand 14 states. [2018-10-25 00:23:40,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:23:40,780 INFO L93 Difference]: Finished difference Result 9789 states and 15354 transitions. [2018-10-25 00:23:40,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-25 00:23:40,780 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 208 [2018-10-25 00:23:40,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:23:40,813 INFO L225 Difference]: With dead ends: 9789 [2018-10-25 00:23:40,813 INFO L226 Difference]: Without dead ends: 6216 [2018-10-25 00:23:40,825 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 212 GetRequests, 81 SyntacticMatches, 114 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 688 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2018-10-25 00:23:40,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6216 states. [2018-10-25 00:23:40,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6216 to 6204. [2018-10-25 00:23:40,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6204 states. [2018-10-25 00:23:41,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6204 states to 6204 states and 9347 transitions. [2018-10-25 00:23:41,005 INFO L78 Accepts]: Start accepts. Automaton has 6204 states and 9347 transitions. Word has length 208 [2018-10-25 00:23:41,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:23:41,006 INFO L481 AbstractCegarLoop]: Abstraction has 6204 states and 9347 transitions. [2018-10-25 00:23:41,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-25 00:23:41,006 INFO L276 IsEmpty]: Start isEmpty. Operand 6204 states and 9347 transitions. [2018-10-25 00:23:41,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-10-25 00:23:41,025 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:23:41,025 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:23:41,026 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:23:41,026 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:23:41,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1183571648, now seen corresponding path program 1 times [2018-10-25 00:23:41,026 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:23:41,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:23:41,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:23:41,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:23:41,028 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:23:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:23:42,046 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 37 proven. 27 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-10-25 00:23:42,047 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:23:42,047 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:23:42,047 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 213 with the following transitions: [2018-10-25 00:23:42,047 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [28], [29], [33], [37], [41], [45], [49], [52], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [805], [807], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:23:42,054 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:23:42,055 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:23:47,093 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 00:23:47,094 INFO L272 AbstractInterpreter]: Visited 174 different actions 517 times. Merged at 7 different actions 19 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 88 variables. [2018-10-25 00:23:47,102 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:23:47,103 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 00:23:47,103 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:23:47,103 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 00:23:47,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:23:47,113 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 00:23:47,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:23:47,366 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 00:23:47,872 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 57 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-10-25 00:23:47,872 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 00:23:48,289 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 57 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-10-25 00:23:48,312 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-25 00:23:48,312 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2018-10-25 00:23:48,312 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-25 00:23:48,313 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-25 00:23:48,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-25 00:23:48,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2018-10-25 00:23:48,313 INFO L87 Difference]: Start difference. First operand 6204 states and 9347 transitions. Second operand 12 states. [2018-10-25 00:24:00,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:24:00,955 INFO L93 Difference]: Finished difference Result 57123 states and 108120 transitions. [2018-10-25 00:24:00,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-10-25 00:24:00,956 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 212 [2018-10-25 00:24:00,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:24:01,374 INFO L225 Difference]: With dead ends: 57123 [2018-10-25 00:24:01,374 INFO L226 Difference]: Without dead ends: 51759 [2018-10-25 00:24:01,499 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 442 SyntacticMatches, 3 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1625 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=897, Invalid=4073, Unknown=0, NotChecked=0, Total=4970 [2018-10-25 00:24:01,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51759 states. [2018-10-25 00:24:03,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51759 to 50705. [2018-10-25 00:24:03,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50705 states. [2018-10-25 00:24:03,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50705 states to 50705 states and 84566 transitions. [2018-10-25 00:24:03,467 INFO L78 Accepts]: Start accepts. Automaton has 50705 states and 84566 transitions. Word has length 212 [2018-10-25 00:24:03,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:24:03,467 INFO L481 AbstractCegarLoop]: Abstraction has 50705 states and 84566 transitions. [2018-10-25 00:24:03,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-25 00:24:03,467 INFO L276 IsEmpty]: Start isEmpty. Operand 50705 states and 84566 transitions. [2018-10-25 00:24:03,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2018-10-25 00:24:03,590 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:24:03,590 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:24:03,591 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:24:03,591 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:24:03,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1814692057, now seen corresponding path program 1 times [2018-10-25 00:24:03,591 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:24:03,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:24:03,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:24:03,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:24:03,593 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:24:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:24:04,632 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-25 00:24:04,995 WARN L179 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-25 00:24:05,450 WARN L179 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-25 00:24:05,490 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 81 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-10-25 00:24:05,491 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:24:05,491 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:24:05,491 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 223 with the following transitions: [2018-10-25 00:24:05,491 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [28], [29], [33], [37], [41], [44], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [805], [807], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:24:05,496 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:24:05,496 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:24:10,959 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 00:24:10,959 INFO L272 AbstractInterpreter]: Visited 174 different actions 517 times. Merged at 7 different actions 19 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 88 variables. [2018-10-25 00:24:10,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:24:10,967 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 00:24:10,967 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:24:10,967 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 00:24:10,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:24:10,976 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 00:24:11,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:24:11,194 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 00:24:11,325 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-10-25 00:24:11,325 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 00:24:11,424 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-10-25 00:24:11,446 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-25 00:24:11,446 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 16 [2018-10-25 00:24:11,446 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-25 00:24:11,448 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-25 00:24:11,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-25 00:24:11,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2018-10-25 00:24:11,449 INFO L87 Difference]: Start difference. First operand 50705 states and 84566 transitions. Second operand 14 states. [2018-10-25 00:24:19,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:24:19,529 INFO L93 Difference]: Finished difference Result 202537 states and 414422 transitions. [2018-10-25 00:24:19,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-10-25 00:24:19,529 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 222 [2018-10-25 00:24:19,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:24:21,157 INFO L225 Difference]: With dead ends: 202537 [2018-10-25 00:24:21,157 INFO L226 Difference]: Without dead ends: 152877 [2018-10-25 00:24:21,420 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 462 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=356, Invalid=1126, Unknown=0, NotChecked=0, Total=1482 [2018-10-25 00:24:21,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152877 states. [2018-10-25 00:24:26,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152877 to 147535. [2018-10-25 00:24:26,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147535 states. [2018-10-25 00:24:26,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147535 states to 147535 states and 243172 transitions. [2018-10-25 00:24:26,608 INFO L78 Accepts]: Start accepts. Automaton has 147535 states and 243172 transitions. Word has length 222 [2018-10-25 00:24:26,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:24:26,609 INFO L481 AbstractCegarLoop]: Abstraction has 147535 states and 243172 transitions. [2018-10-25 00:24:26,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-25 00:24:26,609 INFO L276 IsEmpty]: Start isEmpty. Operand 147535 states and 243172 transitions. [2018-10-25 00:24:26,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2018-10-25 00:24:26,700 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:24:26,700 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:24:26,701 INFO L424 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:24:26,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:24:26,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1093098390, now seen corresponding path program 1 times [2018-10-25 00:24:26,701 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:24:26,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:24:26,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:24:26,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:24:26,702 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:24:26,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:24:27,258 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 113 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-10-25 00:24:27,259 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:24:27,259 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:24:27,259 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 244 with the following transitions: [2018-10-25 00:24:27,259 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [29], [33], [36], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [127], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [805], [807], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:24:27,264 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:24:27,264 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:24:40,395 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 00:24:40,395 INFO L272 AbstractInterpreter]: Visited 174 different actions 697 times. Merged at 8 different actions 36 times. Widened at 1 different actions 1 times. Found 7 fixpoints after 4 different actions. Largest state had 88 variables. [2018-10-25 00:24:40,397 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:24:40,397 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 00:24:40,397 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:24:40,397 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 00:24:40,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:24:40,408 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 00:24:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:24:40,624 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 00:24:41,079 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 103 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-10-25 00:24:41,079 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 00:24:41,244 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 103 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-10-25 00:24:41,266 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-25 00:24:41,266 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2018-10-25 00:24:41,266 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-25 00:24:41,267 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-25 00:24:41,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-25 00:24:41,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2018-10-25 00:24:41,267 INFO L87 Difference]: Start difference. First operand 147535 states and 243172 transitions. Second operand 12 states. Received shutdown request... [2018-10-25 00:24:52,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-10-25 00:24:52,307 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-25 00:24:52,312 WARN L205 ceAbstractionStarter]: Timeout [2018-10-25 00:24:52,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 12:24:52 BoogieIcfgContainer [2018-10-25 00:24:52,313 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-25 00:24:52,313 INFO L168 Benchmark]: Toolchain (without parser) took 229917.02 ms. Allocated memory was 1.5 GB in the beginning and 4.8 GB in the end (delta: 3.2 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-10-25 00:24:52,315 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-25 00:24:52,315 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1282.09 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-25 00:24:52,316 INFO L168 Benchmark]: Boogie Procedure Inliner took 314.84 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -865.7 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. [2018-10-25 00:24:52,317 INFO L168 Benchmark]: Boogie Preprocessor took 160.02 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2018-10-25 00:24:52,318 INFO L168 Benchmark]: RCFGBuilder took 5146.92 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 252.5 MB). Peak memory consumption was 252.5 MB. Max. memory is 7.1 GB. [2018-10-25 00:24:52,318 INFO L168 Benchmark]: TraceAbstraction took 223007.57 ms. Allocated memory was 2.3 GB in the beginning and 4.8 GB in the end (delta: 2.5 GB). Free memory was 1.9 GB in the beginning and 2.8 GB in the end (delta: -877.0 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-10-25 00:24:52,323 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1282.09 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 314.84 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -865.7 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 160.02 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5146.92 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 252.5 MB). Peak memory consumption was 252.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 223007.57 ms. Allocated memory was 2.3 GB in the beginning and 4.8 GB in the end (delta: 2.5 GB). Free memory was 1.9 GB in the beginning and 2.8 GB in the end (delta: -877.0 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1518]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1518). Cancelled while BasicCegarLoop was constructing difference of abstraction (147535states) and FLOYD_HOARE automaton (currently 50 states, 12 states before enhancement),while ReachableStatesComputation was computing reachable states (263122 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 222.9s OverallTime, 9 OverallIterations, 5 TraceHistogramMax, 165.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2168 SDtfs, 29051 SDslu, 3771 SDs, 0 SdLazy, 26880 SolverSat, 6811 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 108.6s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 2028 GetRequests, 1689 SyntacticMatches, 123 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3760 ImplicationChecksByTransitivity, 15.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=147535occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 28.0s AbstIntTime, 5 AbstIntIterations, 2 AbstIntStrong, 0.9988619517322176 AbsIntWeakeningRatio, 0.30673316708229426 AbsIntAvgWeakeningVarsNumRemoved, 1.1371571072319202 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 7.8s AutomataMinimizationTime, 8 MinimizatonAttempts, 6527 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 2475 NumberOfCodeBlocks, 2475 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 3137 ConstructedInterpolants, 0 QuantifiedInterpolants, 1130760 SizeOfPredicates, 3 NumberOfNonLiveVariables, 3902 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 15 InterpolantComputations, 4 PerfectInterpolantSequences, 1010/1097 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown